Pressure transmitter

Abstract

The utility model discloses a pressure transmitter, which relates to the pressure transmitter technical field, and comprises a shell main body and a cooling pipe main body, the shell main body comprises a first shell and a second shell, the second shell is arranged below the first shell, one side of the second shell far away from the first shell is provided with a water inlet, and the cooling pipe main body is arranged below the second shell. The cooling pipe body is arranged on the side, away from the second shell, of the water inlet, and an electric valve is arranged on the side, away from the water inlet, of the cooling pipe body. When the pressure of fluid in a pipeline is detected and the pipeline is opened through an electric valve, the fluid can continuously enter a first connecting pipe so as to reduce the damage of the fluid to the first connecting pipe, and through a spiral pipe in a cooling pipe main body, the duration of the fluid in the spiral pipe is prolonged, so that the cooling efficiency is improved. Therefore, the influence of the temperature on the fluid detection process is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure transmitters, in particular to a pressure transmitter. Background Art

[0002] Pressure transmitter is a device used to measure the pressure of medium such as gas or liquid. It can convert pressure into electrical signals for subsequent data processing and control. Pressure transmitter has the functional characteristics of high-performance pressure sensing chip, automatic temperature compensation, stainless steel shell, battery power supply, data storage, display screen and simple configuration. They are widely used in water supply plants, sewage treatment plants, fire water systems, oil pipelines, gas pipelines and other occasions. When the temperature of the fluid is too high, when the fluid is tested, the high temperature will affect the detection of the fluid. Therefore, a pressure transmitter is needed.

[0003] The application number retrieved is: CN202210542582.0, a high-reliability pressure transmitter, which effectively avoids the force generated by the thermal expansion of various components of the pressure transmitter such as sealant from being transmitted vertically downward through the pins of the pressure sensor core, thereby improving the data acquisition accuracy of the present invention in actual use.

[0004] However, the existing pressure transmitters still have certain defects in actual use: when testing the fluid, if the speed of manually opening the valve is too fast, the fluid will directly impact the testing pipeline, thereby causing damage to the equipment. If the temperature of the fluid is too high, the temperature difference will affect the detection data of the fluid pressure. For this reason, we propose a pressure transmitter. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides a pressure transmitter, which aims to improve the problem that when the valve is manually opened too fast during fluid detection, the fluid will directly impact the detection pipeline, thereby causing damage to the equipment; and when the temperature of the fluid is too high, the temperature difference will affect the detection data of the fluid pressure.

[0006] The utility model implements a pressure transmitter through the following technical scheme, including a shell body and a cooling tube body, the shell body includes a first shell and a second shell, and the second shell is arranged below the first shell, and a water inlet is arranged on a side of the second shell away from the first shell, and the cooling tube body is arranged on a side of the water inlet away from the second shell, and an electric valve is arranged on a side of the cooling tube body away from the water inlet.

[0007] Furthermore, the cooling pipe body includes a first connecting pipe, a spiral pipe and a second connecting pipe, and the spiral pipe is arranged on a side of the first connecting pipe away from the electric valve, and the second connecting pipe is arranged on a side of the spiral pipe away from the first connecting pipe.

[0008] Furthermore, the first shell includes a pressure indicator, a display screen, a top cover and a sealing ring, and the display screen is arranged on the right side of the pressure indicator, and the top cover is installed on the top of the pressure indicator by bolts, and the sealing ring is installed on the top of the top cover.

[0009] Furthermore, an observation window is provided on the outer surface of the second shell, and a locking ring is provided below the water inlet, and a detachable structure is formed between the water inlet and the second connecting pipe through the locking ring.

[0010] Furthermore, the electric valve includes a valve body, a servo motor, a valve stem and a closing member, and the servo motor is installed above the valve body, and the valve stem is installed at the output end of the servo motor, and the closing member is arranged on the side of the valve stem away from the servo motor.

[0011] Furthermore, the second shell also includes a detection chamber, an isolation diaphragm, a pressure detection probe and a control chamber, and an isolation diaphragm is arranged above the detection chamber, and a pressure detection probe is arranged on the side of the isolation diaphragm away from the detection chamber, and a control chamber is arranged on the side of the pressure detection probe away from the isolation diaphragm.

[0012] The utility model provides a pressure transmitter, which has the following beneficial effects:

[0013] When testing the fluid, the electric valve drives the valve stem through the servo motor to rotate and then drives the closing member to rotate, so that the fluid enters the spiral tube along the first connecting tube. At this time, because the opening speed is controlled by the servo motor, the fluid can stably enter the first connecting tube. At this time, when the fluid enters the spiral tube along the first connecting tube, the fluid flows along the spiral tube, and the temperature of the fluid is adsorbed by the spiral tube when the spiral tube flows, so that the temperature contained in the fluid is reduced to reduce the influence of the temperature in the fluid on the detection process. The specific contents are as follows:

[0014] The shell body includes a first shell and a second shell, and the second shell is arranged below the first shell, and a water inlet is arranged on the side of the second shell away from the first shell, and the cooling pipe body is arranged on the side of the water inlet away from the second shell, and an electric valve is arranged on the side of the cooling pipe body away from the water inlet, the cooling pipe body includes a first connecting pipe, a spiral tube and a second connecting pipe, and the spiral tube is arranged on the side of the first connecting pipe away from the electric valve, and the second connecting pipe is arranged on the side of the spiral tube away from the first connecting pipe, the electric valve includes a valve body, a servo motor, a valve stem and a closing piece, and a servo motor is installed above the valve body, and a valve stem is installed at the output end of the servo motor, and a closing piece is arranged on the side of the valve stem away from the servo motor, the second shell also includes a detection chamber, an isolation diaphragm, a pressure detection probe and a control chamber, and an isolation diaphragm is arranged above the detection chamber, and a pressure detection probe is arranged on the side of the isolation diaphragm away from the detection chamber, and a control chamber is arranged on the side of the pressure detection probe away from the isolation diaphragm. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of a pressure transmitter of the utility model;

[0016] Figure 2 This is a structural schematic diagram of a cooling pipe body of a pressure transmitter of the utility model;

[0017] Figure 3 This is a structural schematic diagram of a shell body of a pressure transmitter of the utility model;

[0018] Figure 4 It is a schematic diagram of the front cross-section structure of an electric valve of a pressure transmitter of the utility model;

[0019] Figure 5 The utility model is a schematic diagram of the front cross-section structure of a detection chamber of a pressure transmitter.

[0020] In the figure: 1. Shell body; 2. Cooling pipe body; 3. Electric valve; 4. First shell; 5. Second shell; 6. Water inlet; 7. Observation window; 8. Pressure indicator; 9. Display screen; 10. Top cover; 11. Sealing ring; 12. First connecting pipe; 13. Spiral pipe; 14. Second connecting pipe; 15. Valve body; 16. Servo motor; 17. Valve stem; 18. Closing piece; 19. Locking ring; 20. Detection chamber; 21. Isolation diaphragm; 22. Pressure detection probe; 23. Control chamber. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0022] like Figure 1-Figure 5 As shown, a pressure transmitter includes a shell body 1 and a cooling tube body 2, the shell body 1 includes a first shell 4 and a second shell 5, and the second shell 5 is arranged below the first shell 4, and a water inlet 6 is arranged on the side of the second shell 5 away from the first shell 4, and the cooling tube body 2 is arranged on the side of the water inlet 6 away from the second shell 5, and an electric valve 3 is arranged on the side of the cooling tube body 2 away from the water inlet 6. When it is necessary to detect the pressure inside the pipeline, when the pipeline is opened by the electric valve 3, the electric structure can be used to stably and continuously open the pipeline to allow the liquid to flow, which can reduce the damage to the fluid caused by excessive impact force of the fluid when it is suddenly opened, and when the fluid flows along the cooling tube body 2, the fluid can rotate along the cooling tube body 2, so that the cooling tube reduces the problem of fluid, thereby reducing the influence of temperature on fluid detection.

[0023] The cooling pipe body 2 includes a first connecting pipe 12, a spiral pipe 13 and a second connecting pipe 14, and the spiral pipe 13 is arranged on the side of the first connecting pipe 12 away from the electric valve 3, and the second connecting pipe 14 is arranged on the side of the spiral pipe 13 away from the first connecting pipe 12. When the electric valve 3 opens the closing piece 18 in the first connecting pipe 12, the fluid enters the spiral pipe 13 along the first connecting pipe 12. When the fluid enters the spiral pipe 13, the time the fluid stays in the cooling pipe body 2 is extended, so that the temperature of the fluid can be adsorbed in the spiral pipe 13 inside the cooling pipe body 2. At this time, the fluid enters the second connecting pipe 14 through the spiral pipe 13 and enters the shell body 1, thereby reducing the impact of temperature on the fluid.

[0024] The first shell 4 includes a pressure indicator 8, a display screen 9, a top cover 10 and a sealing ring 11, and the display screen 9 is arranged on the right side of the pressure indicator 8, and the top cover 10 is installed on the top of the pressure indicator 8 by bolts, and the sealing ring 11 is installed on the top of the top cover 10, and when the fluid enters the second shell 5, when the pressure is detected, the pressure indicator 8 changes with the indicator in the pressure detection, and when the pressure data enters the control room 23, the control room 23 transmits the data to the display screen 9 for digital display.

[0025] An observation window 7 is provided on the outer surface of the second shell 5, and a locking ring 19 is provided below the water inlet 6, and a detachable structure is formed between the water inlet 6 and the second connecting pipe 14 through the locking ring 19. At this time, when the fluid is detected, the impact pressure detection probe 22 of the fluid can be observed through the observation window 7. At this time, when the second connecting pipe 14 is placed inside the water inlet 6, the second connecting pipe 14 is locked with the water inlet 6 by rotating the locking ring 19, thereby completing the fixation of the second connecting pipe 14.

[0026] The electric valve 3 includes a valve body 15, a servo motor 16, a valve stem 17 and a closing piece 18, and the servo motor 16 is installed above the valve body 15, and the valve stem 17 is installed at the output end of the servo motor 16, and the closing piece 18 is provided on the side of the valve stem 17 away from the servo motor 16. When detection is required, the servo motor 16 in the electric valve 3 is operated, and the servo motor 16 drives the valve stem 17 to rotate, so that the valve stem 17 drives the closing piece 18 to rotate, so that the fluid flows along the first connecting pipe 12.

[0027] The second shell 5 also includes a detection chamber 20, an isolation diaphragm 21, a pressure detection probe 22 and a control chamber 23, and an isolation diaphragm 21 is arranged above the detection chamber 20, and a pressure detection probe 22 is arranged on the side of the isolation diaphragm 21 away from the detection chamber 20, and a control chamber 23 is arranged on the side of the pressure detection probe 22 away from the isolation diaphragm 21. At this time, when the fluid enters the detection chamber 20 along the second connecting pipe 14, the fluid inside the detection chamber 20 will squeeze the isolation diaphragm 21, and the isolation diaphragm 21 squeezes the pressure detection probe 22, so that the pressure sensor inside the control chamber 23 obtains data when the pressure detection probe 22 is squeezed by pressure.

[0028] In summary, the utility model is through the shell body 1 and the cooling pipe body 2, wherein when the fluid in the pipeline is detected, the electric valve 3 is opened, and when the servo motor 16 in the electric valve 3 drives the closing member 18 to rotate through the valve stem 17, the motor can be used to maintain the stability of the opening process to reduce the impact of the fluid on the pipeline when the opening speed is too fast. At this time, when the fluid enters along the first connecting pipe 12, the fluid enters the spiral tube 13 along the first connecting pipe 12. At this time, when the fluid flows inside the spiral tube 13, the fluid can pass through the spiral tube 1 3 reduces the temperature in the fluid, and at this time the fluid enters the second connecting tube 14 along the spiral tube 13, so that when the fluid enters the second shell 5 inside the shell body 1 along the second connecting tube 14, the fluid enters the detection chamber 20 in the second shell 5, and at this time the fluid squeezes the isolation diaphragm 21 above the detection chamber 20, and at this time the fluid squeezes the isolation diaphragm 21, and at this time the isolation diaphragm 21 squeezes the pressure detection probe 22, and at this time the data obtained by the pressure detection probe 22 is transmitted to the pressure sensor inside the control room 23, and at this time the pressure indicator 8 and the display screen 9 simultaneously detect the data.

Claims

1. A pressure transmitter, comprising a shell body (1) and a cooling tube body (2), characterized in that: The shell body (1) includes a first shell (4) and a second shell (5), and the second shell (5) is arranged below the first shell (4), and a water inlet (6) is arranged on a side of the second shell (5) away from the first shell (4), and the cooling pipe body (2) is arranged on a side of the water inlet (6) away from the second shell (5), and an electric valve (3) is arranged on a side of the cooling pipe body (2) away from the water inlet (6).

2. A pressure transmitter according to claim 1, characterized in that: The cooling pipe body (2) comprises a first connecting pipe (12), a spiral pipe (13) and a second connecting pipe (14), and the spiral pipe (13) is arranged on a side of the first connecting pipe (12) away from the electric valve (3), and the second connecting pipe (14) is arranged on a side of the spiral pipe (13) away from the first connecting pipe (12).

3. A pressure transmitter according to claim 1, characterized in that: The first housing (4) comprises a pressure indicator (8), a display screen (9), a top cover (10) and a sealing ring (11), wherein the display screen (9) is arranged on the right side of the pressure indicator (8), and the top cover (10) is installed above the pressure indicator (8) by means of bolts, and the sealing ring (11) is installed above the top cover (10).

4. A pressure transmitter according to claim 2, characterized in that: An observation window (7) is provided on the outer surface of the second housing (5), and a locking ring (19) is provided below the water inlet (6), and a detachable structure is formed between the water inlet (6) and the second connecting pipe (14) via the locking ring (19).

5. A pressure transmitter according to claim 1, characterized in that: The electric valve (3) comprises a valve body (15), a servo motor (16), a valve stem (17) and a closing member (18), wherein the servo motor (16) is installed above the valve body (15), the valve stem (17) is installed at the output end of the servo motor (16), and the closing member (18) is arranged on a side of the valve stem (17) away from the servo motor (16).

6. A pressure transmitter according to claim 1, characterized in that: The second housing (5) further comprises a detection chamber (20), an isolation diaphragm (21), a pressure detection probe (22) and a control chamber (23), wherein the isolation diaphragm (21) is arranged above the detection chamber (20), the pressure detection probe (22) is arranged on a side of the isolation diaphragm (21) away from the detection chamber (20), and the control chamber (23) is arranged on a side of the pressure detection probe (22) away from the isolation diaphragm (21).

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